James l



UNITED STATES PATENT OFFICE.

JAMES L.` GLOVER, OF WINDSOR LOCKS, CONNECTICUT, ASSIGNOR TO HIMSELF AND GEORGE GLOVER, JR., OF SAME PLACE.

CIRCULAR-SAW `vlsE.

SPECIFICATION forming part of Letters Patent No. 224,676, dated February 17, 1880.

Application led July 14, 1879.

. idling,` and upsettin g their teeth, which shall he so constructed as to hold the saws firmly while being operated upon, and which shall be simple in construction and convenient in use.

The invention consists in the combination of the rear circular jaw, provided with the hub,

the shoulder, and the male screw, the forward circular jaw, provided with the hub, the recess, the female screw, and the handle, and the detachable ring-lianges with each other, as here inafter fully described.

`A is the rearjaw of the vise, which is provided with a plate, B, by means of which it is securedto the bench or other support. The jaw A is made circular in form, and upon its face, and concentric therewith, is formed a circular hub, et. Upon the face of the hub a is formed a circular shoulder, c2, to receive the eye of the saw. C is a wrought-iron male screw, around the hase of which the jaw A, h'ub a', and shoulder a2 are cast, and the threads of which iit into the threads of the female screw D, formed in the center of the forward jaw, E.

c of the rear jaw, A. In the center of the face of the hub e is formed a recess, e2, corresponding with the shoulder a2 of the rear hub, a', so that saws of various thickness may be firmly held.

i F are ring-flanges, the cavities of which are made of such a size as to fit upon the hubs a e of the jaws A E, and which are made a little thicker than the hubs a e', so as to clamp the saw firmly. The ring-anges F may be made of various sizes, s0 that saws of different sizes may be held and operated upon in the same vise. The middle part ofthe outer side of the forward jaw, E, projects, and isprovided with a lever-handle, G, for convenience in screwing,` it on and ott'.

In using` the vise, the jaw E is screwed oft' and iianges F of 'the proper lsize are placed upon the hubs a c. The saw is then placed upon the shoulder a2 and the jawE is screwed on, clamping the saw securely between the flanges F and holding it firmly while being operated upon.

Having thus described my invention, what I clair-n as new, and desire to secure by Letters Parent, is-

The combination of the circular jaw A, provided with the hub a', the shoulder a1", and the male screw C, the circular jaw E, provided with the huh @'the recess e2, the female screw D, and the handle G, and the ring-liangcs F with each other, substantially as herein shown and described.

JAMES L. GLO'VER.

Witnesses:

SIMON B. DOUGLAS, MARTIN J. SUEREY. 

